Yielding cop-winding spindle.



R. KRENZ. YIELDING COP wmoms SPIN'DLE. APPUCAT'ON LEO MAY 29, NH] 1,259,999. Patented Mar. 19, 1918.

UNITED STATES PATENT OFFICE.

RUDOLPH KRENZ, OF MIDDLETOWN, CONNECTICUT, ASSIGNOR TO THE RUSSELL MFG. (10., 0F MIDDLETOWN, CONNECTICUT, A. CORPORATION.

YIELDIN G COP-WIN DING $PINDLE.

Specification of Letters Patent.

Patented Mar. 19, 1918.

Application filed May 29, 1917, Serial No. 171,651.

To all whom it may concern:

Be it known that I, RUDOLPH KRENZ, a citizen of the United States, residing at hiliddletown, in the county of Middlesex and State of Connecticut, have invented a new and useful ln'iproveinent in Yielding Cop-Winding Spindles; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in-

Figure l a broken view partly in side elevation, and partly in vertical section, of a cop-winding machine, showing the use of my improved yielding spindle.

Fig. 2 a detached view in side elevation of my improved spindle.

Fig. 3 a detached view in side elevation of the point of my improved spindle.

Fig. 1 a view thereof in end elevation.

Fig. 5 a detached view in end elevation showing the winding-cone with the spindle in it.

This invention relates to an improvement in cop-winding spindles, the object being to produce a spindle of such a character that it will permit partially used cops to be reintroduced into a cop-winding machine and supplied with enough more yarn to build them up to standard size, whereby the scrapping of partially used cops is avoided and economy of time and labor in the handling of the looms in which the cops are used, is ell'ected.

With these ends in View, my invention consists in a yielding cop-winding spindle which permits a partly used cop to be re-introduced into a cop-winding machine and again built up to full size.

My invention further consists in a copwinding spindle consisting of a spindlebody and a yielding point t BIQf My invention further consists in a copwinding spindle having certain details of construction and combinations of parts will be hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, I employ a spindle-body 2 having one of its ends formed with a deep concentric bore or cylindrical chamber 3 receiving the cylindrical inner or butt-end 4 of a tapering polygonal point 5, the butt 4 having a longitudinal diametrical slot 6 for the reception of a transverse retaining-pin 7 passing through the chamber 3 and provided for coupling the said point to the spindle-body for rotation therewith, but with freedom for longitudinal movement with respect thereto. A helical spring 8 located in the bottom of the bore 3 impinges against the inner end of the butt 4 of the point and exerts a constant effort to force the point outward, though permitting it to yield or retreat as may be required in use.

My improved yielding spindle, above described, is journaled in any suitable copwinding machine, as shown in Fig. 1, the outer end of the spindle-body being journalcd in the upright 9 of the machine-frame 10, while its inner end is journaled in a bushing 11 located within the sleeve 12 of a winding-cone 13, the said sleeve 12 being fixed in the upright 14 of the machine. A driving-pulley 15 mounted upon the spindle and secured thereto by a set-screw 16, is provided for rotating it. The spindle is also provided with an ordinary loose pulley 16 The winding-cone 13 is formed with the usual radial thread-slot 17. The machine is also furnished with a slide-bar 18 arranged below the yielding spindle and the winding-cone in the vertical plane thereof, and carrying a slide or carrier 19 having an upwardly extending arm 20 terminating in a head 2]. mounting a freely rotatable trunnion '22 for the wood cop-butt 23 which, as shown, is of conical form. The slide 19 is connected with a cord 24 passing over a pulley to a weight 26 which exerts a constant effort to draw the slide rearward upon the bar 18 toward the winding-cone 13.

In the use of my improved spindle, it is mounted, as described, in a cop-winding machine of approved construction, though not necessarily like that shown in the accompanying drawing. Now when a partially used cop has its tapered end inserted into the winding-cone 13 over the yielding point 5 of the spindle, the said point is forced by the weight 26, to retire against the force of the helical spring 8, into the spindle-body 2 until the tapering end of the cop has been fully engaged with the interior walls of the winding-cone 13 which is essential in the rebuilding of the cop to full size, since if the tapering end of the partly used cop does not tapering interior walls of the winding-cone, there will be a groovelike construction of the rebuilt cop at the point where the re-building is started. This constriction of the cop so weakens it at this point that it cannot be used. The extent to which the point 5 of the cop will yield under the action of the weight 26 before the tapering end of the cop will come into engagement with the interior Walls of the windin -cone, will depend upon the ultimate size of the hole formed in the cop at the time it was originally wound by the spindle on which it was wound. In a given number of cops these holes would theoretically be of exactly the same size, but owing to slight variations in the tension of the yarn, they will collapse more or less when the partially used cops are removed from the loom. Therefore when the partly used cops are re-introduced into a cop-winding machine, the extent to which their tapering ends may be forced over the yielding tapering point of the spindle will vary. These variations are compensated for, under my invention, by the retirement of the point into the spindle-body until the tapering end of the cop has been engaged with the walls 01% the winding-cone.

By means of my improved spindle, I am enabled to utilize the partly used cops whether only a little used, or used down to a relatively small butt-end. This results in fully engage with the an important economy, since it avoids the necessity of scrapping any cops and also enables the weaver to use the cops in such a manner as to effect a great economy of time and labor.

I claim 1. A longitudinally yielding cop-winding spindle comprising a spindle-body and a spindle-point combined for yielding longitudinally with respect to each other under endwise pressure, whereby the spindle may be used for building up partially used cops to standard size.

2. A cop-winding spindle comprising a spindlebody, a longitudinally and yielding tapering point.

3. A cop-winding spindle having a spindlc-body formed at one end with a concentric chamber, a tapering spindle point having its butt entered into the said chamber in which it is secured for rotation with the spindle-body but left free to move longitudinally with respect thereto, and a spring I located in the said chamber and holding the point in its normally projected position.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

RUDOLPH KRENZ.

\Vitnesses H. A. PoPP, H. M. KnLsEY.

Copiel 01 this patent may be btainesl tor five cents each, by addressing the Commissioner of Patents.

Washington, D. 6. 

